A lithium battery pole post milling device

Abstract

The application relates to the field of milling technology and discloses a lithium battery pole post milling device, which comprises a workbench, a milling machine, a milling cutter, a carrying table and a lithium ion battery; the milling machine and the carrying table are arranged on the top of the workbench; the milling cutter is arranged below the milling machine; the lithium ion battery is arranged on the top of the workbench; the bottom of the milling machine is provided with a limiting assembly; the limiting assembly comprises a positioning cylinder which is fixedly connected to the bottom of the milling machine and is provided with a limiting ring fixedly connected to the outer wall of the positioning cylinder; the limiting ring is matched with a limiting pin through mechanical linkage, so that the milling cutter can be disassembled and assembled without additional tools. The problems that the traditional milling cutter replacement process is complicated and time-consuming are solved, the downtime gap of the equipment caused by tool replacement is reduced, and the continuous processing efficiency of the production line is improved; through the guiding cooperation of the strip-shaped limiting block and the calibration groove, the coaxiality and positioning accuracy of the milling cutter after installation are ensured, and the milling cutter deviation problem caused by manual disassembly and assembly is avoided.

Description

Technical Field

[0001] This invention relates to the field of milling, and more specifically to a milling device for lithium battery terminals. Background Technology

[0002] The lithium battery terminal milling device is a specialized piece of equipment used for the recycling and processing of lithium batteries (especially retired lithium batteries). Its core function is to precisely mill the battery terminals with a milling cutter. It also works with components for handling, positioning, and clamping to achieve flattening of the terminals, providing a foundation for subsequent processes such as electrolyte recycling and electrode repair.

[0003] Commercially available lithium battery terminal milling devices typically rely on additional tools to remove fasteners and replace milling cutters. This process is cumbersome and time-consuming, resulting in long downtime and impacting continuous production line efficiency. Furthermore, the lack of precise guiding and positioning structures makes manual disassembly and assembly prone to cutter misalignment, compromising the coaxiality of the cutter after installation and affecting terminal milling accuracy. Conventional devices often employ a single gripper structure, providing only lateral restraint and lacking bottom support. For long, thin lithium batteries, this can lead to displacement and tipping during handling. Additionally, the grippers are often designed for hard contact, which can damage the battery casing. The lack of a multi-component synchronous action mechanism allows for changes in battery handling posture, creating potential problems for precise positioning during subsequent terminal milling and increasing the risk of milling deviations due to battery displacement.

[0004] Secondly, the clamping mechanism of most devices has a fixed size and can only be adapted to a single specification of lithium battery. Faced with the actual needs of diverse specifications of retired lithium batteries, the universality is insufficient. Enterprises need to equip themselves with special equipment for different specifications of batteries, which increases the equipment investment cost. Moreover, the clamping structure lacks adaptive adjustment capability and has high requirements for battery condition. Strict pretreatment of the battery is required to ensure clamping stability, which limits the flexibility of retired battery recycling and processing.

[0005] Therefore, there is a need to provide a lithium battery terminal milling device to solve the above problems. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a lithium battery terminal milling device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a lithium battery terminal milling device, comprising a worktable, a milling machine, a milling cutter, a transport table, and a lithium-ion battery, wherein the milling machine and the transport table are both disposed on the top of the worktable, the milling cutter is disposed below the milling machine, the lithium-ion battery is disposed on the top of the worktable, and a limit component is disposed on the bottom of the milling machine;

[0008] The limiting component includes a positioning cylinder, which is fixedly connected to the bottom of the milling machine. A limiting ring is fixedly connected to the outer wall of the positioning cylinder. The limiting ring and the outer wall of the positioning cylinder are slidably connected to a limiting dial ring. A first return spring is provided between the limiting dial ring and the positioning cylinder. The top of the first return spring is fixedly connected to the limiting ring, and the bottom of the first return spring is fixedly connected to the inner wall of the limiting dial ring.

[0009] Preferably, the limiting component further includes a plurality of cylindrical grooves, which are arranged in a ring at equal intervals inside the positioning cylinder. Each cylindrical groove is slidably connected to a limiting pin, and a second limiting spring is sleeved on the outside of each limiting pin. One end of the second limiting spring is fixedly connected to the limiting pin, and the other end of the second limiting spring is fixedly connected to the positioning cylinder. The positioning cylinder has a plurality of strip-shaped calibration grooves arranged in a ring at equal intervals inside.

[0010] Preferably, the milling cutter is provided with a calibration component, which includes a plurality of strip-shaped limiting blocks. The plurality of strip-shaped limiting blocks are arranged in a ring at equal intervals on the outer wall of the milling cutter, and the outer wall of the milling cutter is provided with a plurality of limiting holes in a ring at equal intervals.

[0011] Preferably, the top of the transport platform is provided with a translation component, the translation component includes a positioning block, the positioning block is fixedly connected to the top of the transport platform, a servo motor is installed inside the positioning block, a power connecting rod is fixedly connected to the output shaft of the servo motor, and a strip-shaped lever is fixedly connected to the middle of the power connecting rod.

[0012] Preferably, the translation component further includes a positioning plate, which is fixedly connected to the bottom of the positioning block. T-shaped limiting block groups are symmetrically fixedly connected to the top of the positioning plate. T-shaped grooved slide plates are slidably connected to the outer walls of both sets of T-shaped limiting block groups. Limiting connecting posts are provided on the top of both T-shaped grooved slide plates and the top of the strip-shaped lever. The strip-shaped lever is rotatably connected to threaded connecting rods through the two top limiting connecting posts. The ends of the two threaded connecting rods away from the limiting connecting posts are respectively rotatably connected to the limiting connecting posts on the top of the two T-shaped grooved slide plates.

[0013] Preferably, the bottom of the positioning block is provided with an auxiliary clamping component, which includes a trapezoidal groove. The trapezoidal groove is symmetrically opened inside the T-shaped groove slide plate. A threaded rod is rotatably connected inside the trapezoidal groove. A trapezoidal slider is slidably connected inside each trapezoidal groove. A dustproof plate is symmetrically rotatably connected to the outer wall of the positioning block. A fixing block is fixedly connected to the bottom of each trapezoidal slider.

[0014] Preferably, the auxiliary clamping assembly further includes four sets of electric telescopic rods, which are rectangularly distributed and installed at the bottom of four trapezoidal sliders. Each electric telescopic rod has a V-shaped block rotatably connected to its output shaft, and each V-shaped block has a roller symmetrically rotatably connected to its bottom. Each V-shaped block has an arc-shaped support plate fixedly connected to its bottom, and a torsion spring is provided between each V-shaped block and the output shaft of the electric telescopic rod.

[0015] Preferably, a plurality of cylindrical grooves and strip-shaped calibration grooves are arranged alternately, a plurality of strip-shaped limiting blocks and a plurality of limiting holes are arranged alternately, each strip-shaped limiting block corresponds to a strip-shaped calibration groove, each strip-shaped limiting block is slidably connected inside the strip-shaped calibration groove, and each limiting pin corresponds to a limiting hole.

[0016] Preferably, the trapezoidal slider is threaded onto the outer wall of the threaded rod, and all four electric telescopic rods are synchronously controlled by the same controller.

[0017] Preferably, the lower inner surface of the limiting ring is inclined, and the milling cutter is slidably connected inside the positioning cylinder.

[0018] The lithium battery terminal milling device provided by this invention has the following advantages compared with the prior art:

[0019] The mechanically linked limit ring and limit pin allow for the installation and removal of milling cutters without the need for additional tools. This solves the problems of cumbersome and time-consuming traditional milling cutter replacement processes, reduces downtime caused by tool changes, and improves the continuous processing efficiency of the production line. Furthermore, the guide mechanism of the strip-shaped limit block and calibration groove ensures the coaxiality and positioning accuracy of the milling cutter after installation, avoiding the milling cutter misalignment problem that easily occurs during manual disassembly and assembly.

[0020] By incorporating translation and auxiliary clamping components, a dual "clamping + lifting" fixation system is achieved. The V-shaped block, in conjunction with the rollers, not only conforms to the battery's outer wall to create a limiting position but also prevents damage to the battery casing from hard contact. The bottom support design of the arc-shaped tray enhances stability during handling and solves the tipping problem when transporting long, thin batteries. Simultaneously, the synchronized movement design of multiple components ensures the battery's stable posture during transport, providing a foundation for precise positioning during subsequent terminal milling and reducing milling deviations caused by battery displacement.

[0021] The adjustable auxiliary clamping assembly allows for adjustment of the clamping distance by rotating the threaded rod, accommodating retired lithium batteries of different lengths and widths. This significantly improves the equipment's versatility and avoids the cost of replacing specialized equipment due to diverse battery specifications. Simultaneously, the combination of the V-block and torsion spring adapts to different battery sizes, reducing the equipment's requirements for battery pretreatment and enhancing the flexibility of retired battery recycling and processing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram showing the overall positional relationship of the device in this invention;

[0023] Figure 2 This is a schematic diagram showing the positional relationship between the worktable, milling machine, and lithium-ion battery in this invention;

[0024] Figure 3 This is a schematic diagram showing the positional relationship between the milling machine, the milling cutter, and the positioning cylinder in this invention;

[0025] Figure 4 This is a schematic diagram showing the positional relationship between the milling cutter, positioning cylinder, strip-shaped calibration groove, and strip-shaped limiting block in this invention;

[0026] Figure 5 This is a schematic diagram showing the positional relationship between the positioning cylinder, the limiting ring, the limiting dial ring, and the first reset spring in this invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged view of the structure at point A in the middle;

[0028] Figure 7 This is a schematic diagram showing the positional relationship between the workbench, the transport table, and the positioning block in this invention;

[0029] Figure 8 This is a schematic diagram showing the positional relationship between the servo motor, the power connecting rod, and the strip-shaped dial in this invention;

[0030] Figure 9 This is a schematic diagram showing the positional relationship between the T-shaped groove slide plate, the limiting connecting post, the strip-shaped deflector plate, and the threaded connecting rod in this invention;

[0031] Figure 10 This is a schematic diagram showing the positional relationship between the positioning plate, the T-shaped limiting block group, and the T-shaped groove slide plate in this invention;

[0032] Figure 11 This is a schematic diagram showing the positional relationship between the trapezoidal slider, the fixed block, and the electric telescopic rod in this invention;

[0033] Figure 12 For the present invention Figure 11 Enlarged view of the structure at point B in the middle;

[0034] Figure 13This is a schematic diagram showing the positional relationship between the electric telescopic rod, V-block, roller, and arc-shaped support plate in this invention.

[0035] Reference numerals: 11. Worktable; 12. Milling machine; 13. Milling cutter; 14. Transfer table; 15. Lithium-ion battery;

[0036] The limiting assembly includes: 21, positioning cylinder; 22, limiting ring; 23, limiting dial ring; 24, first return spring; 25, cylindrical groove; 26, limiting pin; 27, second limiting spring; 28, strip-shaped calibration groove;

[0037] The calibration components include: 31, a strip-shaped limiting block; 32, a limiting hole;

[0038] The translation assembly includes: 41. Positioning block; 42. Servo motor; 43. Power connecting rod; 44. Positioning plate; 45. T-shaped limit block assembly; 46. T-shaped grooved slide plate; 47. Limiting connecting post; 48. Strip-shaped dial plate; 49. Threaded connecting rod;

[0039] The auxiliary clamping components include: 51, trapezoidal slide; 52, threaded rod; 53, trapezoidal slider; 54, dustproof plate; 55, fixing block; 56, electric telescopic rod; 57, V-block; 58, roller; 59, arc-shaped support plate; 510, torsion spring. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the invention.

[0041] In the description of this invention, the terms “center,” “horizontal,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0043] Implementation, for example Figures 1 to 6As shown, a lithium battery terminal milling device provided in an embodiment of the present invention includes a worktable 11, a milling machine 12, a milling cutter 13, a transport table 14, and a lithium-ion battery 15. The milling machine 12 and the transport table 14 are both disposed on the top of the worktable 11, the milling cutter 13 is disposed below the milling machine 12, the lithium-ion battery 15 is disposed on the top of the worktable 11, and a limit component is disposed on the bottom of the milling machine 12.

[0044] The limiting assembly includes a positioning cylinder 21, which is fixedly connected to the bottom of the milling machine 12. A limiting ring 22 is fixedly connected to the outer wall of the positioning cylinder 21. A limiting ring 23 is slidably connected to the outer wall of the positioning cylinder 21 and the limiting ring 22. A first return spring 24 is provided between the limiting ring 23 and the positioning cylinder 21. The top of the first return spring 24 is fixedly connected to the limiting ring 22, and the bottom of the first return spring 24 is fixedly connected to the inner wall of the limiting ring 23.

[0045] The limiting component also includes several cylindrical grooves 25, which are arranged in a ring at equal intervals inside the positioning cylinder 21. Each cylindrical groove 25 is slidably connected to a limiting pin 26. Each limiting pin 26 is sleeved on the outside of a second limiting spring 27. One end of the second limiting spring 27 is fixedly connected to the limiting pin 26, and the other end of the second limiting spring 27 is fixedly connected to the positioning cylinder 21. The positioning cylinder 21 has several strip-shaped calibration grooves 28 arranged in a ring at equal intervals inside.

[0046] The milling cutter 13 is equipped with a calibration component, which includes several strip-shaped limiting blocks 31. The strip-shaped limiting blocks 31 are arranged in a ring at equal intervals on the outer wall of the milling cutter 13. The outer wall of the milling cutter 13 is provided with several limiting holes 32 in a ring at equal intervals.

[0047] It should be noted that the cylindrical groove 25 and the strip-shaped calibration groove 28 are staggered inside the positioning cylinder 21, and the corresponding strip-shaped limiting block 31 and limiting hole 32 are also staggered on the outer wall of the milling cutter 13. The strip-shaped limiting block 31 and the strip-shaped calibration groove 28 are matched and slidably engaged to ensure the guiding accuracy of the milling cutter 13 when it slides inside the positioning cylinder 21. The limiting pin 26 and the limiting hole 32 correspond one-to-one to provide precise radial positioning for the milling cutter 13. Meanwhile, the lower surface of the inner wall of the limiting ring 23 is inclined, which can drive the extension and retraction of the limiting pin 26 through the pressure of the inclined surface. The milling cutter 13 is slidably connected to the inside of the positioning cylinder 21, providing a basic sliding fit structure for quick disassembly and assembly. The end of the limiting pin 26 near the limiting ring 23 is set as an arc surface, which, together with the inclined surface at the bottom of the limiting ring 23, can reduce the frictional resistance when the two slide relative to each other and extend the service life of the component. The inner wall of the limiting hole 32 is set as a columnar arc surface, which matches the columnar arc end of the limiting pin 26, which can not only improve the smoothness of insertion and removal, but also enhance the radial locking force after positioning.

[0048] like Figures 7 to 13 As shown, a translation component is provided on the top of the transport platform 14. The translation component includes a positioning block 41, which is fixedly connected to the top of the transport platform 14. A servo motor 42 is installed inside the positioning block 41. A power connecting rod 43 is fixedly connected to the output shaft of the servo motor 42. A strip-shaped lever 48 is fixedly connected to the middle of the power connecting rod 43.

[0049] The translation component also includes a positioning plate 44, which is fixedly connected to the bottom of the positioning block 41. T-shaped limiting block groups 45 are symmetrically fixedly connected to the top of the positioning plate 44. T-shaped grooved slide plates 46 are slidably connected to the outer walls of the two T-shaped limiting block groups 45. Limiting connecting posts 47 are provided on the top of the two T-shaped grooved slide plates 46 and the strip-shaped lever 48. The strip-shaped lever 48 is rotatably connected to threaded connecting rods 49 through the two limiting connecting posts 47 at the top. The ends of the two threaded connecting rods 49 away from the limiting connecting posts 47 are rotatably connected to the limiting connecting posts 47 at the top of the two T-shaped grooved slide plates 46.

[0050] The bottom of the positioning block 41 is provided with an auxiliary clamping component, which includes a trapezoidal slide groove 51. The trapezoidal slide groove 51 is symmetrically opened inside the T-shaped groove slide plate 46. A threaded rod 52 is rotatably connected inside the trapezoidal slide groove 51. A trapezoidal slider 53 is slidably connected inside each trapezoidal slide groove 51. A dustproof plate 54 is symmetrically rotatably connected to the outer wall of the positioning block 41. A fixing block 55 is fixedly connected to the bottom of each trapezoidal slider 53.

[0051] The auxiliary clamping assembly also includes four sets of electric telescopic rods 56. The four sets of electric telescopic rods 56 are rectangularly distributed and installed at the bottom of four trapezoidal sliders 53. A V-block 57 is rotatably connected to the output shaft of each electric telescopic rod 56. A roller 58 is symmetrically rotatably connected to the bottom of each V-block 57. An arc-shaped support plate 59 is fixedly connected to the bottom of each V-block 57. A torsion spring 510 is provided between each V-block 57 and the output shaft of the electric telescopic rod 56.

[0052] It should be noted that the positioning block 41 adopts a double-plate splicing structure, with the two plates fixed together by bolts to ensure structural strength and facilitate the installation and maintenance of the internal servo motor 42 and transmission components. The trapezoidal slider 53 and the threaded rod 52 are threadedly connected; rotating the threaded rod 52 drives the trapezoidal slider 53 to slide smoothly along the trapezoidal groove 51, achieving precise adjustment of the clamping distance. The bottom of the dustproof plate 54 is symmetrically equipped with limiting hemispherical blocks, and the outer wall of the positioning block 41 is symmetrically provided with hemispherical grooves. The limiting hemispherical blocks of the dustproof plate 54 are compatible with the hemispherical grooves on the outer wall of the positioning block 41, enabling rapid opening and closing of the dustproof plate 54. This facilitates adjustment of the clamping distance and prevents machining debris from entering the groove. The four electric telescopic rods 56 are synchronously controlled by the same controller, ensuring consistent movement of the four clamping components and preventing uneven battery force due to asynchronous extension and retraction. The roller 58 is made of rubber, which can increase the friction with the lithium-ion battery 15 and avoid damaging the battery casing. The preload of the torsion spring 510 can keep the V-block 57 at its initial angle. When contacting batteries of different sizes, the elastic deformation of the torsion spring 510 can allow the V-block 57 to fit against the outer wall of the lithium-ion battery 15 through the roller 58, improving the clamping adaptability.

[0053] Based on the above embodiments, the following is the complete working process and working principle of the above embodiments:

[0054] During operation, in the lithium battery terminal processing scenario, the milling cutter 13 of the existing milling equipment is prone to wear and chipping due to long-term contact with the metal terminal. The replacement of the traditional milling cutter 13 requires the use of tools to remove fasteners, which is cumbersome and time-consuming, and will greatly reduce the continuous processing efficiency of the equipment. Therefore, it is urgent to realize the rapid replacement of the milling cutter 13.

[0055] Milling cutter 13 quick assembly and disassembly:

[0056] During installation, first move the limiting ring 23 toward the limiting ring 22. The limiting ring 23 slides upward along the outer wall of the positioning cylinder 21 and compresses the first return spring 24. At this time, the inclined surface at the bottom of the limiting ring 23 is at the same horizontal height as the limiting pin 26. The second limiting spring 27 elastically contracts and pulls the limiting pin 26 along the cylindrical groove 25 toward the direction close to the limiting ring 23, so that the limiting pin 26 always abuts against the inner wall of the limiting ring 23.

[0057] Then, the strip-shaped limiting block 31 on the outer wall of the milling cutter 13 is aligned with the strip-shaped calibration groove 28 inside the positioning cylinder 21, and the milling cutter 13 is pushed to slide along the inside of the positioning cylinder 21. Since the strip-shaped limiting block 31 and the limiting hole 32, the cylindrical groove 25 and the strip-shaped calibration groove 28 are all staggered, after the milling cutter 13 slides into place along the strip-shaped calibration groove 28 through the strip-shaped limiting block 31, the limiting hole 32 can automatically and accurately align with the limiting pin 26.

[0058] At this time, the limiting ring 23 is released, the first reset spring 24 extends elastically, and drives the limiting ring 23 to move away from the limiting ring 22. The horizontal height of its bottom inclined surface facing the limiting pin 26 decreases, gradually squeezing the limiting pin 26 to slide along the cylindrical groove 25. At the same time, the limiting pin 26 compresses the second limiting spring 27 and finally slides into the limiting hole 32, completing the rapid fixing of the milling cutter 13.

[0059] During disassembly, push the limiting ring 23 towards the top of the positioning cylinder 21, causing it to press the first return spring 24 towards the limiting ring 22. Once the bottom inclined surface of the limiting ring 23 is at the same horizontal level as the limiting pin 26, the second limiting spring 27 pulls the limiting pin 26 towards the inclined surface. The limiting pin 26 gradually disengages from the limiting hole 32 on the milling cutter 13, releasing the restriction on the milling cutter 13. The milling cutter 13 can then be removed for quick disassembly. This structure requires no additional tools, shortens the milling cutter 13 replacement time, and improves the continuous processing efficiency of the equipment.

[0060] The steps for handling lithium-ion batteries 15:

[0061] In the lithium battery terminal milling process, the handling stability of the lithium-ion battery 15 directly affects the subsequent milling accuracy. If the battery shifts or tilts during handling, it will not only cause milling deviations but also pose safety risks. Therefore, it is necessary to achieve stable battery movement.

[0062] This device achieves stable transport of lithium-ion battery 15 through the linkage of translation component and auxiliary clamping component. First, the milling machine 12 is driven to rise, and then the transport table 14 is driven to move the translation component and auxiliary clamping component below towards lithium-ion battery 15.

[0063] When it moves above the lithium-ion battery 15, drive the four sets of electric telescopic rods 56 (the four sets of electric telescopic rods 56 are synchronously controlled by the same controller), so that they drive the V-shaped block 57, roller 58 and arc-shaped support plate 59 to move towards the lithium-ion battery 15 until the arc-shaped support plate 59 moves below the lithium-ion battery 15.

[0064] At this time, the drive servo motor 42 rotates, and its output shaft drives the power connecting rod 43 to rotate. The power connecting rod 43 drives the strip-shaped dial plate 48 to rotate synchronously. The strip-shaped dial plate 48 drives the two threaded connecting rods 49 to move through the two limit connecting posts 47 at the top. The end of the threaded connecting rod 49 away from the strip-shaped dial plate 48 pulls the limit connecting posts 47 at the top of the two T-shaped groove slide plates 46, so that the two T-shaped groove slide plates 46 move in the same direction. During the movement, the T-shaped groove slide plates 46 slide along the outer wall of the T-shaped limit block group 45 to ensure the stability of the movement.

[0065] When the T-shaped groove slide plate 46 moves, it will drive the trapezoidal slider 53, the fixed block 55, and the electric telescopic rod 56 at the bottom to move synchronously. The electric telescopic rod 56 drives the V-shaped block 57 to abut against the outer wall of the lithium-ion battery 15. The roller 58 on the V-shaped block 57 first contacts the lithium-ion battery 15. As the clamping force gradually increases, the V-shaped block 57 compresses the torsion spring 510 and adaptively adjusts the angle so that the arc-shaped support plate 59 at the bottom fits against the four ends of the bottom of the lithium-ion battery 15.

[0066] At this time, the electric telescopic rod 56 is retracted, and the arc-shaped support plate 59 provides stable support for the lithium-ion battery 15. Meanwhile, the four corners of the lithium-ion battery 15 are stopped by the V-shaped block 57 and the roller 58, which realizes the stable handling of the lithium-ion battery 15 and avoids the risk of deviation and tipping during the handling process.

[0067] Retired lithium batteries come in various sizes and specifications. If existing equipment cannot be adapted to different battery sizes, it will limit the applicability of the equipment. Therefore, it is necessary to achieve compatibility with lithium-ion batteries of different specifications.

[0068] This device, through the adjustable structure of the auxiliary clamping component, can adapt to lithium-ion batteries 15 of different sizes. After the operator opens the dust cover 54, they rotate the threaded rod 52. Since the trapezoidal slider 53 is threadedly connected to the outer wall of the threaded rod 52, the rotation of the threaded rod 52 will drive the trapezoidal slider 53 to slide along the inside of the trapezoidal groove 51. The trapezoidal slider 53 simultaneously drives the bottom fixed block 55 and the electric telescopic rod 56 to move, thereby adjusting the distance between the electric telescopic rod 56, the V-block 57, and the roller 58 to adapt to lithium-ion batteries 15 of different lengths and widths, thus improving the versatility of the equipment.

[0069] Meanwhile, the torsion spring 510 between the V-block 57 and the output shaft of the electric telescopic rod 56 allows the V-block 57 to adaptively adjust its angle according to the shape of the outer wall of the battery. Combined with the rolling contact of the roller 58, this further enhances the adaptability to batteries of different specifications and ensures the stability of clamping.

[0070] While several embodiments and examples of the present invention have been described for those skilled in the art, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included within the scope and spirit of the invention, and are included within the scope of the invention as described in the claims and its equivalents.

[0071] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lithium battery terminal milling device, comprising a worktable (11), a milling machine (12), a milling cutter (13), a transport table (14), and a lithium-ion battery (15), wherein the milling machine (12) and the transport table (14) are both disposed on top of the worktable (11), the milling cutter (13) is disposed below the milling machine (12), and the lithium-ion battery (15) is disposed on top of the worktable (11), characterized in that, The bottom of the milling machine (12) is provided with a limit component; The limiting component includes a positioning cylinder (21), which is fixedly connected to the bottom of the milling machine (12). A limiting ring (22) is fixedly connected to the outer wall of the positioning cylinder (21). A limiting ring (23) is slidably connected to the outer wall of the positioning cylinder (21) and the limiting ring (22). A first return spring (24) is provided between the limiting ring (23) and the positioning cylinder (21). The top of the first return spring (24) is fixedly connected to the limiting ring (22), and the bottom of the first return spring (24) is fixedly connected to the inner wall of the limiting ring (23). The top of the transport platform (14) is provided with a translation component, which includes a positioning block (41). The positioning block (41) is fixedly connected to the top of the transport platform (14). A servo motor (42) is installed inside the positioning block (41). A power connecting rod (43) is fixedly connected to the output shaft of the servo motor (42). A strip-shaped lever (48) is fixedly connected to the middle of the power connecting rod (43). The translation component also includes a positioning plate (44), which is fixedly connected to the bottom of the positioning block (41). The top of the positioning plate (44) is symmetrically fixedly connected to a T-shaped limiting block group (45). The outer walls of the two T-shaped limiting block groups (45) are slidably connected to T-shaped groove slide plates (46). The tops of the two T-shaped groove slide plates (46) and the strip-shaped dial plate (48) are provided with limiting connecting posts (47). The strip-shaped dial plate (48) is rotatably connected to a threaded connecting rod (49) through the two limiting connecting posts (47) at the top. The ends of the two threaded connecting rods (49) away from the limiting connecting posts (47) are respectively rotatably connected to the limiting connecting posts (47) at the top of the two T-shaped groove slide plates (46). The bottom of the positioning block (41) is provided with an auxiliary clamping component, which includes a trapezoidal groove (51). The trapezoidal groove (51) is symmetrically opened inside the T-shaped groove slide plate (46). A threaded rod (52) is rotatably connected inside the trapezoidal groove (51). A trapezoidal slider (53) is slidably connected inside each trapezoidal groove (51). A dustproof plate (54) is symmetrically rotatably connected to the outer wall of the positioning block (41). A fixing block (55) is fixedly connected to the bottom of each trapezoidal slider (53). The auxiliary clamping assembly also includes four sets of electric telescopic rods (56). The four sets of electric telescopic rods (56) are rectangularly distributed and installed at the bottom of four trapezoidal sliders (53). A V-shaped block (57) is rotatably connected to the output shaft of each electric telescopic rod (56). A roller (58) is symmetrically rotatably connected to the bottom of each V-shaped block (57). An arc-shaped support plate (59) is fixedly connected to the bottom of each V-shaped block (57). A torsion spring (510) is provided between each V-shaped block (57) and the output shaft of the electric telescopic rod (56).

2. The lithium battery terminal milling device according to claim 1, characterized in that, The limiting component also includes several cylindrical grooves (25), which are arranged in a ring at equal intervals inside the positioning cylinder (21). Each cylindrical groove (25) is slidably connected to a limiting pin (26). Each limiting pin (26) is sleeved with a second limiting spring (27) on its outer side. One end of the second limiting spring (27) is fixedly connected to the limiting pin (26), and the other end of the second limiting spring (27) is fixedly connected to the positioning cylinder (21). The positioning cylinder (21) has several strip-shaped calibration grooves (28) arranged in a ring at equal intervals inside.

3. The lithium battery terminal milling device according to claim 2, characterized in that, The milling cutter (13) is provided with a calibration component, which includes a plurality of strip-shaped limiting blocks (31). The plurality of strip-shaped limiting blocks (31) are arranged in a ring at equal intervals on the outer wall of the milling cutter (13). The outer wall of the milling cutter (13) is provided with a plurality of limiting holes (32) in a ring at equal intervals.

4. The lithium battery terminal milling device according to claim 3, characterized in that, Several cylindrical grooves (25) and strip calibration grooves (28) are arranged alternately, several strip limiting blocks (31) and several limiting holes (32) are arranged alternately, each strip limiting block (31) corresponds to a strip calibration groove (28), each strip limiting block (31) is slidably connected inside the strip calibration groove (28), and each limiting pin (26) corresponds to a limiting hole (32).

5. A lithium battery terminal milling device according to claim 4, characterized in that, The trapezoidal slider (53) is threaded onto the outer wall of the threaded rod (52), and the four electric telescopic rods (56) are all synchronously controlled by the same controller.

6. A lithium battery terminal milling device according to claim 1, characterized in that, The lower inner surface of the limiting ring (23) is inclined, and the milling cutter (13) is slidably connected inside the positioning cylinder (21).

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